Calculating device.



.PATENTED JULY 21, 1903.

E. B. ALLEY. CALCULATING DEVICE.

APPLICATION FILED MAY 10, 1902.

N0 MODEL.

"m a S E m w UNITED STATES Patented July 21, 1903.

EEIcE.

PATENT CALCULATING DEVICE.

SPECIFICATION iorming' part of Letters Patent No. 733,930, dated July21, 1903. Application filed May 10, 1902. Serial No. 106,801. (Nomodel.)

To all whmn it may concern:

Be it known that I, EUGENE BLISH ALLEY, of Arlington Heights, in thecounty of Middlesex, in the State of Massachusetts, have invented newand useful Improvements in Calculating Devices, of which the following,taken in connection with the accompanying drawings, is a full, clear,and exact description.

This invention relates to improvements in calculating devices, beingparticularly applicable for calculating wage earnings and to be used inmaking up a pay-roll.

The object of this invention is to produce a simple, compact, andefficient device by which the total earnings or wages for consecutiveunits of time at predetermined rates per unit can be readily andaccurately determined without the necessity for any calculation.

To this end the invention consists in the combination, construction, andarrangement of the parts of a calculating device, as hereinafter fullydescribed,and pointed out in the claim.

Referring to the drawings, Figures 1 and 2 are respectively obverse andreverse face views of myimprovedcalculatingdevicasohie of the platesbeing extended for the purpose of revealing the tabulations. Fig. 3 isan end view of the device seen in Figs. 1 and 2, showing particularlythe abutment and finger-ring, the plates being shown in their closedposition. Fig. 4: is a sectional view taken on line 4 4, Fig. 1.

Similar reference characters indicate corresponding parts in all theviews.

As seen in the drawings, this invention consists, essentially, of aseries of plates 1, pivotally connected at one end to a suitableinclosing case or frame, consisting of separated upper and lower walls 2and 3, the opposite ends of said walls being united by studs 4 and 5,which serve to hold the walls in separated relation to each other, thestud 4 serving as a pivot for the several plates 1, and the studs 5 forman abutment for engaging and limiting the inward movement of theopposite ends of the plates 1. The plates 1 and the walls 2 and 3 arepreferably of substantially the same form, said plates being arrangedone over the other between the walls 2 and 3.

As seen in the drawings, the plates 1 and walls 2 and 3 consist ofsubstantially fiat pieces or sheets of suitable material, the walls 2and 3 being formed of celluloid, metal, or any other material adapted toreceive and maintain the plates 1. These latter plates 1 may also be ofany desired material-such as celluloid or cardboard, preferably thelatterand are pivotally mounted one over the other upon the stud 4, eachof said plates being provided with a laterally-projecting tab 6, whichprojects beyond the lateral edges of the upper and lower walls 2 and 3when the plates are in their closed position. The adjacent plates 1 arearranged to swing laterally in opposite directions into and out ofengagement with the opposite faces of the abutment or stud 5, saidplates being provided with abutting shoulders 7 for engaging saidabutment 5 and limiting theinward swing of the plates. The tabs 5 ofadjacent plates are secured to opposite edges of their respectiveplates, and these tabs are arranged out'of vertical alinement with eachother in order that each may be visible when the plates are moved totheir closed position. 7

Upon each of the tabs 5 are printed numerals a, indicating the wageearnings for a unit of ti meas, for instance, the tab at the right ofFig. 1 bears thenumeral 10, which indicates the wage earnings for onehour of time or ten cents an hour, while the tab at the left indicateswage earnings at seventeen and one-half cents per hour. In like mannerthe opposite faces of said tabs are printed with different numerals toindicate different prices per hour, as seen in Fig. 2. The oppositefaces of the body or central portion of each of the plates are alsoprovided with tables b, consisting of a series of columns a ofconsecutive numerals indicating consecutive hours, in this instance from1 to 70, inclusive, this being the number of hours for seven days or afull week with an average for each day of ten hours, each columncontaining a number of hours corresponding to a days work-as, forinstance, the first column numbers from 1 to 10 and the second columnfrom 11 to 20and the third column from 21 to 30, and so on, eachsuccessive column containing ten consecutive numbers. As previouslystated, the printed numeral on the tab of each plate indicates the wageearnings per hour, and in order to readily determine the total earningsfor any number of units of time I provide the table with additionalcolumns cl of numerals, which are multiples of the numerals upon thesame face of the tab 5. These numerals in the column d are alined withthe numerals in the column 0, and the numeral in any particular line isa product of the corresponding number in that line multiplied by thenumeral on the corresponding face of the tab 5. For instance, anemployee working eight hours at seventeen and one-half cents an hour isreadilyseen to amount to one dollar and forty cents, and one workingseventeen hours at seventeen and one-half cents, indicated by the tab,is apparent in the second column d, at the left of Fig. 1, to be twodollars and ninety-seven and one-half cents, and so on, each number ofhours at the indicated price per hour upon the tab the total earningsfor any number of hours may be readily ascertained. It is customary inmost places where help is employed to limit the weeks labor to six days.The tabulated faces of each plate are provided with numerals e and f,the numerals 6 indicating the wage earnings for the full Week of sixdays, ten hours per day, or sixty hours, at the price per hour asindicated by the numeral on the tab and also by the numeral f, which issimply a duplicate of the similar numeral on the tab. I also print uponthe faces of each of the plates, usually beneath the table f, the wageearnings for fractions of an hour at the price per hour indicated on thetab-as, for instance, when the tab indicates wage earnings at ten centsper hour, the fourth of an hour computed to be two and a half cents;one-half hour, five cents; threefourths hour, seven and a halfcents-Which may be readily added to the totals indicated after eachnumeral in the column 0. For example, suppose a workman receivesseventeen anda half cents an hour, as indicated on the tab on the plateat the left of Fig. 1, and his total time for the week was sixty-threeand a half hours. Then the timekeeper finds upon the table 63 in thelast column 0, and immediately after that the total earnings for thesixty-three hours to be eleven dollars and two and a half cents, and atthe bottom of the card or plate he finds the earning for a half hour tobe eight and three-fourths cents, which the timekeeper then adds to thetotal of eleven dollars and two and a half cents and readily obtains thefull earnings to which the employee is entitled.

In order to enable the time or book keeper to readily manipulate thecards, I provide the device with a suitable finger ring or loop 10,which is usually secured to the bottom plate in any desired manner andfacilitates the holding of the device when the pay-roll is being made upfrom the figures on the plates; The ring 10 is provided with a flatenlarged portion 10, whereby it can be held firmly in the keepers 11.

The operation of my invention will now be readily understood uponreference to the foregoing description and the accompanying drawings,and it will be noted that the exact form of the case and plates isimmaterial and may be changed without departing from the spirit of theinvention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

The combination with the frame comprising upper and lower walls, and theplurality of the plates pivotally mounted between said walls, and a pairof spaced-apart keepers formed integrally with one of the said walls,and the ring having a flat enlarged portion arranged between the saidkeepers and engaging the adjacent wall whereby the said ring isprevented from tilting.

In witness whereof I have hereunto set my hand this 7th day of May,1902.

EUGENE BLISH ALLEY.

Witnesses:

ELIZABETH W. CARTER, ARTHUR F. BREED.

